The Assertor-class Star Dreadnought was the largest and most heavily armed ship ever built by the Mikaru Corporation and Mustafarian Merchants Alliance. Unlike the Bellator-class Star Battlecruiser it wasn't mass produced, due to its size and cost. At just over fifteen kilometers in length, and boasting hundreds of weapon emplacements the ship fell into the Super Star Destroyer category Star Dreadnought.

The Concept of the Assertor came about in a bout of pure irony against the Empire. During the Galactic Civil War the Empire had used the term Super-class Star Destroyer with false schematics as a cover for the budget of the Executor class. These fake schematics were in the databanks of Imperial Ships in orbit over Eshan when the Empire was removed from power, giving the Echani access to them. Following an alliance with the Mustafarians the Mikaru Shipwrights and the Mustafarian Merchant's Alliance looked over the plans and created the Assertor, named using a word that means "one who asserts the position of another".

Within the course of over a year of research, development, financing, and construction, the first Assertor, Furious One was completed. Following the successful use of the use of the Furious One the Echani began construction of the Eversor in a Secret Construction Facility in 13ABY. Both completed ships were massive, so massive that the Echani never planed to build a second ship, while the Mustafarians made plans for a second. The end result however was a ship capable of taking on any other ship in the galaxy and decimating it, with a final weapons output of all arcs greater then a single Executor. Combined with its massive hanger bay it could carry a total of 18 wings of starfighters.[1]